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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1828883Generated: October 30, 2026

Ethanol → 2,2-Difluoromalonic acid, disodium salt

https://huagongshe.com/reaction/1828883

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
ReactantDiethyl 2,2-difluoromalonateHCID 260648—
SolventWaterHCID 962—
Product2,2-Difluoromalonic acid, disodium saltHCID 86594123—

Reaction Conditions

Temperature60 °C

Reaction Steps

Sodium hydroxide (0.90 g, 0.022 mol) was dissolved in 5 mL water followed by dilution with 25 mL ethanol and the solution was heated to 60° C. Diethyl difluoromalonate (2 g, 0.01 mol) was then added to the stirred reaction mixture. A white precipitate formed immediately. The mixture was stirred for another 45 min while maintaining the temperature at 60° C. The fine white precipitate was collected and dried at 45° C. for 18 h. Yield 1.84 g (99%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07060818B2
Source datasetuspto-grants-2006_06
ORD IDord-f265a8c0e2d7434bbb37bf6f77a56b8f
Source noteuspto-grants-2006_06